The game has atmosphere. And a really big pytamid! Also, scorpions.
Good thing I've read the comments before starting, because then I'd have no idea that I have to find a pyramid.
Unfortunately, the problems start when you get to the pyramid, because the game turns into a first person precision platformer. Which is a very hard type of game to execute even for the professional games. The controls are... not the best for this. Floaty movements weren't so bad when I was only walking, but when I had to make a very precise strife to the left, but I held the right key a few milisecond too long and fell they made me rather frustrated. Add to this lack of textures (or maybe the effects were hiding the textures?) which made judging my speed a bit harder. Not only that, you can lose a lot of progres by unlucky falls.
Which is what got me to quit.
Don't be too discouraged by my words! I think the game is a great start. Just... give the player some kind of "sneak" ability, that allows them to move slower and more precise.